MESON Chess Problem Database

Problem Display
PID: 158165 (8/8/2P1p3/4Q3/rk6/3R4/n1KnB3/8 w - - 0 1)

Geary, William

5th Prize, British Chess Magazine 13. Ty., 1906-1907

8/8/2P1p3/4Q3/rk6/3R4/n1KnB3/8

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Rb3#
      • 2.Rd4#
    • 1...Sb1
      • 2.Rb3#
    • 1...Sf1
      • 2.Rb3#
    • 1...Sb3
      • 2.Rxb3#
    • 1...Sf3
      • 2.Rb3#
    • 1...Sc4
      • 2.Rb3#
    • 1...Se4
      • 2.Rb3#
  • Tries
    • 1.Rc3?
      • threat
        • 2.Qb5#
        • 2.Qc5#
      • 1...Sxc3
        • 2.Qxc3#
      • 1...Ra3
        • 2.Qb5#
      • 1...Ra6
        • 2.Qb5#
      • 1...Ra7
        • 2.Qb5#
      • 1...Ra8
        • 2.Qb5#
      • 1...Sb3
        • 2.Rxb3#
      • 1...Sc4
        • 2.Rb3#
      • 1...Se4
        • 2.Rb3#
        • 2.Qb5#
      • 1...Ra5!
    • 1.Re3?
      • threat
        • 2.Qb5#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sb3
        • 2.Rxb3#
      • 1...Sc4
        • 2.Rb3#
      • 1...Ra5!
  • Keys
    • 1.Ra3!
      • 1...Kxa3
        • 2.Qb2#
      • 1...Rxa3
        • 2.Qb5#
      • 1...Ra5
        • 2.Qxa5#
      • 1...Ra6
        • 2.Qd6#
      • 1...Ra7
        • 2.Qd6#
      • 1...Ra8
        • 2.Qd6#
      • 1...Sc1
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sb1
        • 2.Rb3#
      • 1...Sf1
        • 2.Rb3#
      • 1...Sb3
        • 2.Rxb3#
      • 1...Sf3
        • 2.Rb3#
      • 1...Sc4
        • 2.Rb3#
      • 1...Se4
        • 2.Rb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::R1(C)
    • S(b);N_GUARD::R1(C),XS(b)
  • Tries
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);OGATE,XR(C)::QAB1(D),XS(a)
        • R(c);::QAR1(D)
        • S(b);N_GUARD::R1(C),XS(b)
        • S(b);N_GUARD::R1(C)
      • Refutation
        • R(c);
    • Try
      • R(C);
      • Threat
        • QAR1(D)
      • Vars
        • S(a);N_GUARD::QAB1(D),XS(a)
        • S(b);N_GUARD::R1(C),XS(b)
        • S(b);N_GUARD::R1(C)
      • Refutation
        • R(c);
  • Actual
    • R(C);
    • Vars
      • K(d);S_FLIGHT,XR(C)::QAB1(D)
      • R(c);SBLOCK,XR(C)::QAR1(D)
      • R(c);N_GUARD::QAB1(D),XR(c)
      • R(c);::QAB(D)
      • S(a);N_GUARD::QAB1(D)
      • S(a);N_GUARD::QAB1(D),XS(a)
      • S(b);N_GUARD::R1(C)
      • S(b);N_GUARD::R1(C),XS(b)
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